RING 0068663 - Caterpillar

This procedure covers the following diagnostic codes:
Table 1
Diagnostic Trouble Codes for Analog Passive Sensors    
J1939 Code    Code Description    Comments    
105-3     Engine Intake Manifold #1 Temperature : Voltage Above Normal     The Electronic Control Module (ECM) detects the following conditions:
The signal voltage from the intake manifold air temperature sensor is greater than 4.95 VDC for more than 8 seconds.
Engine coolant temperature is above
−10 °C (15.0 °F).
The ECM will use the default value of
70 °C (158 °F) for the intake manifold air temperature. "Voltage High" will be displayed next to the status for "Intake Manifold Air Temperature" on the electronic service tool.
The engine may show the following symptoms:
Poor stability
Poor cold running
Poor acceleration under load
White smoke    
105-4     Engine Intake Manifold #1 Temperature : Voltage Below Normal     The ECM detects the following conditions:
The signal voltage from the intake manifold air temperature sensor is less than 0.2 VDC for more than 8 seconds.
The ECM will use the default value of
70 °C (158°F) for the intake manifold air temperature. "Voltage Low" will be displayed next to the status for "Intake Manifold Air Temperature" on the electronic service tool.
The engine may show the following symptoms:
Poor stability
Poor cold running
Poor acceleration under load
White smoke    
110-3     Engine Coolant Temperature : Voltage Above Normal     The ECM detects the following conditions:
The signal voltage from the engine coolant temperature sensor is greater than 4.95 VDC for more than 8 seconds.
An